get_url_file_name: Fixed crash on OOM on debug build

This caused a null-pointer dereference which caused a few dozen
torture tests to fail.

diff --git a/src/tool_operhlp.c b/src/tool_operhlp.c
index 7a6ed2015642fd6182ccb0511dc0303aa2a9c5cc..abf949617f067873274b7749b714c7313ffd129b 100644 (file)
--- a/src/tool_operhlp.c
+++ b/src/tool_operhlp.c
@@ -164,6 +164,8 @@ CURLcode get_url_file_name(char **filename, const char *url)
       Curl_safefree(*filename);
       *filename = strdup(buffer); /* clone the buffer */
       curl_free(tdir);
+      if(!*filename)
+        return CURLE_OUT_OF_MEMORY;
     }
   }
 #endif